In solitude what does thoreau say is the best medicine

Answer: Thoreau argues that the best medicine is nature.

Explanation: In "Solitude" by Henry David Thoreau, he argues that nature is "the most sweet and tender, the most innocent and encouraging society" and it prevents him from ever truly feeling alone. To him, he is a part of nature and nature itself is ever alone. The animals, plants, and elements is an infinite supply of company and spiritual nourishment for him.

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